We added the 40-cup ZERO WATER Dispenser so that we didn't have to refill so often. The 40-cup is awesome, giving us filtered water all the time. The only misstep in the design is where the spigot is placed. If it were lower, more of the filtered water could be used. Still, we find this dispenser indispensable. I use the filtered water for our pets, on my plants, and in my aquarium. It is the closest to rainwater you can find.